UW 6ff 



CONTENTS 



Page 



List of officials v 



General statement 1 



The Establishment 6 



The Board of Regents 7 



Finances 8 



Visitors 8 



Lectures 9 



Bio-Sciences Information Exchange 10 



Junior League docent activities 11 



Summary of the year's activities of the Institution 13 



Reports of branches of the Institution: 



United States National Museum 16 



Bureau of American Ethnology 42 



Astrophysical Observatory 65 



National Collection of Fine Arts 75 



Freer Gallery of Art 89 



National Air Museum 101 



National Zoological Park 117 



Canal Zone Biological Area 161 



International Exchange Service 169 



National Gallery of Art 178 



Report on the library 193 



Report on publications 197 



Report of the executive committee of the Board of Regents 204 



GENERAL APPENDIX 



Page 



The edge of the sun, by Donald H. Menzel 215 



The mystery of Mars, by H. P. Wilkins 229 



The story of cosmic rays, by W. F. G. Swann 245 



Atmospheric pollution in growing communities, by Francois N. FrenkieL. 269 



Hurricanes, by R. C. Gentry and R. H. Simpson 301 



Plantlike features in thunder-eggs and geodes, by Roland W. Brown 329 



Exploration for the remains of giant ground sloths in Panama, by C. 



Lewis Gazin 341 



The Kitimat story, by Angela Croome 355 



Sewage treatment — how it is accomplished, by C. E. Keefer 363 



Pioneer settlement in eastern Colombia, by Raymond E. Crist and Ernesto 



Guhl 391 



The sources of animal behavior, by G. P. Wells 415 



Rivers in the sea, by F. G. Walton Smith 431 



A narrative of the Smithsonian-Bredin Caribbean Expedition, 1956, by 



Waldo L. Schmitt 443 



Man as a maker of new plants and new plant communities, by Edgar 



Anderson 46 1 



Project Coral Fish looks at Palau, by Frederick M. Bayer and Robert R. 



Harry-Rof en 481 



Archeological work in Arctic Canada, by Henry B. Collins 509 



The Cherokees of North Carolina: Living memorials of the past, by 



William H. Gilbert, Jr 529 



Dried meat — early man's travel ration, by Edward N. Wentworth. 557 



in 



